Inverse Spline Interpolation for All-time Resistivity of Central-Loop TEM

作     者：XIONG Bin MAO Ya-dan 

作者机构：School of lnfo-Physics ＆ Geomatics Engineering Central South University Changsha Hunan 410083 China Institute of Geophysics ＆ Geomatics China University of Geosciences Wuhan Hubei 430074 China 

出 版 物：《Journal of China University of Mining and Technology》 (中国矿业大学学报（英文版）)

年 卷 期：2005年第15卷第3期

页      面：172-176页

核心收录：

学科分类：081801[工学-矿产普查与勘探] 081802[工学-地球探测与信息技术] 08[工学] 0818[工学-地质资源与地质工程] 

基　　金：Project 40344022 supported by National Natural Science Foundation of China 

主　　题：transient electromagnetic method all-time apparent resistivity inverse spline interpolation 

摘      要：A convenient numerical calculation method (inverse spline interpolation) for all-time apparent resistivity intransient electromagnetic method (TEM) is proposed in this paper. Characteristic of early and late normalized inductiveelectromotive force was investigated. According to the turning point, the transient process is divided into the earlyphase, the turning point, and the late phase. Afterwards, apparent resistivity is obtained through inverse spline interpo-lation in the early and the late phases, respectively. Finally, the resistivities of the early-time and the late-time wereconnected together by the turning point. The result shows that the inverse spline method is feasible and the method alsolays a foundation for initial model construction in the TEM automatic inversion.